Alert archive / Indiana / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 58, NWS Indianapolis, IN

June 6, 1990Posey County, Vanderburgh County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 6, 1990, 1:35 PM CDT for Posey County, Vanderburgh County, Indiana. It was in force for 55 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 6, 1990, 1:35 PM CDT (18:35 UTC)
Expired: Jun 6, 1990, 2:30 PM CDT
In force: 55 min
Issued by: NWS Indianapolis, IN
Area: Whole counties

Counties Posey County, IN, Vanderburgh County, IN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Jun 6, 1:48 PM CDT	Thunderstorm Wind 0	Posey, IN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 6.6 hours before the alert went out and 136 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 154 J/kg
Mixed-layer CIN: -506 J/kg
Mixed-layer LCL: 1005 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 81 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KEVV 061836
SVREVV
INC129-163-061930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EVANSVILLE IN
135 PM CDT WED JUN 6 1990
 
THE NATIONAL WEATHER SERVICE IN EVANSVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN SOUTHWEST INDIANA
          ...POSEY...VANDERBURGH
 
AT 130 PM CDT...THE CITY POLICE IN POSEYVILLE AND SOLITUDE REPORTED
TREES BENDING TO THE GROUND FROM THUNDERSTORM WIND. THIS STORM WAS
MOVING EAST AT 35 MILES AN HOUR AND WILL MOVE THROUGH EVANSVILLE
SHORTLY AFTER 2 PM CDT.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LA{RGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
SUMMY

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 6, 1:31 PM CDT	Severe Thunderstorm Warning	IND	Daviess, Gibson, Knox, Pike	44 min
Jun 6, 1:55 PM CDT	Tornado Warning	IND	Vanderburgh, Warrick	35 min
Jun 6, 2:29 PM CDT	Tornado Warning	IND	Perry, Spencer	46 min

Nearby

Severe Thunderstorm Warnings in Indiana, 1990 Every severe thunderstorm warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.